WO2015136128A1 - Fire extinguishing device for in-air use - Google Patents

Fire extinguishing device for in-air use Download PDF

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Publication number
WO2015136128A1
WO2015136128A1 PCT/ES2015/000032 ES2015000032W WO2015136128A1 WO 2015136128 A1 WO2015136128 A1 WO 2015136128A1 ES 2015000032 W ES2015000032 W ES 2015000032W WO 2015136128 A1 WO2015136128 A1 WO 2015136128A1
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WO
WIPO (PCT)
Prior art keywords
fire
tank
water
fire extinguishing
foam
Prior art date
Application number
PCT/ES2015/000032
Other languages
Spanish (es)
French (fr)
Other versions
WO2015136128A8 (en
Inventor
Lluís ÁLVAREZ MONTANER
Original Assignee
Álvarez Montaner Lluís
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Álvarez Montaner Lluís filed Critical Álvarez Montaner Lluís
Priority to CA2942093A priority Critical patent/CA2942093C/en
Priority to US15/125,416 priority patent/US10201721B2/en
Priority to EP22180566.6A priority patent/EP4098330A1/en
Priority to AU2015228725A priority patent/AU2015228725B2/en
Priority to EP15762071.7A priority patent/EP3117872A4/en
Priority to NZ724226A priority patent/NZ724226A/en
Publication of WO2015136128A1 publication Critical patent/WO2015136128A1/en
Publication of WO2015136128A8 publication Critical patent/WO2015136128A8/en

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Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C3/00Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/02Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires
    • A62C3/0228Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires with delivery of fire extinguishing material by air or aircraft
    • A62C3/0235Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires with delivery of fire extinguishing material by air or aircraft by means of containers, e.g. buckets
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C5/00Making of fire-extinguishing materials immediately before use
    • A62C5/02Making of fire-extinguishing materials immediately before use of foam
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64DEQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D1/00Dropping, ejecting, releasing, or receiving articles, liquids, or the like, in flight
    • B64D1/16Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting

Definitions

  • the invention relates to a device for extinguishing fires of those that are suitable for transport by helicopter and externally loaded with water in cisterns, swimming pools, rivers and lakes, etc., with the particularity that it has facilitated and optimized means of loading of water and the generation of fire-fighting foam by means of a fire extinguishing foam cannon.
  • Forest fires are the cause of the ruin of our forests, destroying not only landscapes and ecosystems that will take a long time to regenerate, but also ruining wood wealth, the forestry industry, destroying or damaging crops, buildings and causing misfortunes in people and animals.
  • airplanes and helicopters are used to great advantage because of their ease of movement they can access places of the otherwise inaccessible fire, or to wooded places where crews would take or could not arrive.
  • airplanes and helicopters benefit from their speed in covering distances, and also from their carrying capacity to throw large amounts of water over points. Helicopters are preferable to airplanes or hydroplanes, because they can be refilled from water in more diverse places.
  • the usual procedure to load water in a helicopter is to provide it with a container that is suspended from the helicopter's load hook, submerge the container on the surface of a lake, for example, and when it has already been filled, lift the flight with the load of water.
  • the mixing of the fire extinguishing compound must therefore be facilitated, while simultaneously maintaining the capacity, in a device such as that of the invention, for water recharge.
  • Spanish Patent No. 0419040 by Alexander Linkewich, describes the realization of a fire-fighting paste mixing water with fire retardant products, such as ammonium sulfate mixed with clay and a binding agent. How the loading of said paste requires be made on the ground, the patent proposes to load the product in the aircraft tanks to delay fires, and then, by conventional means, to load the water, the mixture being carried out on the fly.
  • fire retardant products such as ammonium sulfate mixed with clay and a binding agent.
  • US patent US4240507 of Hokkanen, describes an air use cistern. It has one or more openings in the bottom to be filled that are closed with a gate. A second cistern contains an additive to mix with water.
  • the apparatus includes a mechanism to control the mixing of the additive with the water by means of a pair of valves associated with the stroke of a piston, so that in one case it mixes water and additive, in another case it releases the mixture on the fire and finally, returns leftover and unused additive to your storage tank.
  • US patent US4601345 by Mahrt, describes a device for mixing and supplying an extinguishing mixture in a container or cistern formed by water and a fire retardant agent.
  • a container of fire retardant substance is arranged in the same structure of the apparatus and another tank with water suspended in the air.
  • the retarding substance is transferred from one container to another to be mixed with the water that is loaded by conventional methods.
  • the rotation of a propeller located at the end of the injection lance serves to remove and accelerate the mixture.
  • the patent PCT W094 / 28975 of As BeerTransport, describes a tank for use with an extinguishing mixture that has means to prevent the rotation of the module, to carry out the control by the pilot of its functions by means of radio communications, together with a device that through a cone that moves at the discretion of the pilot, accepting more or less mixing, allows a discrete dosage of the pouring of the mixture.
  • the pouring is done by gravity and the retarding substance is located directly at the bottom of the tank so that the mixture with the water is carried out in their mutual contact.
  • the discharge of the foam occurs practically by gravity as it does not generate sufficient driving force to fire the foam.
  • the device of the invention does not act by gravity but by the pressure of an ejector pump that projects the fire extinguishing substance, and can be applied at its discretion and in successive applications, thus correcting the aforementioned drawbacks.
  • the foam is discharged at a determined pressure completely expanded and homogeneous, which means obtaining a more effective extinguishing product and greater mixing performance.
  • Another additional advantage is that much less water is used in the new device than in conventional devices. This reduces the load of the aircraft and facilitates its handling, being able to make flights at low speed and even in stationary, which translates into a much more precise and effective fire extinguishing.
  • the present invention has been designed which describes a fire extinguishing device for use in helicopters, which has an extinguishing foam generating barrel formed by a foam expansion chamber that receives a foaming mixture of water and foam fire extinguisher, at a given pressure and flow rate, from a disintegration nozzle of the sparkling jet terminated in injectors of said mixture, said mixture being combined with air in said expansion chamber until it is projected, under pressure, against an aerating mesh, which forms a fully expanded and homogeneous extruder foam.
  • the present invention is designed to be incorporated into tanks that are suspended by a sling, for example steel, textile, etc.
  • These tanks have independent tanks for water and foam, the latter preferably located in the lower area of the tank to give stability to the assembly by lowering the center of gravity, and a motor module where a motor that feeds a suction pump is located to aspirate the water and to expel the foaming agent under pressure, a foam injection and dosing system such as that formed by a calibrated pressure and flow pump that is connected to the water pump or directly to the water tank, to achieve Foaming solution in the right proportion, flow direction valves to select the filling or injection function of the foaming solution, and the corresponding control electronics.
  • Figure 1 shows a representation of a tank according to the invention identifying the parts that form it.
  • FIG. 2 is a schematic representation of the engine module located in the upper area of the tank of Figure 1.
  • Figure 3 schematically and simplely depicts the foam generating barrel of the device of the invention.
  • Figure 4 shows a representation of a helicopter with a device according to the invention, loading water from a surface such as that of a lake, pond or the like.
  • Figure 5 shows a representation of the helicopter of the previous figure in the action of firing the homogeneous and expanded foam that is obtained according to the invention.
  • the invention consists of a fire extinguisher device for aerial use that incorporates an extinguishing foam generating barrel formed by an air inlet expansion chamber (12) that receives foaming and extinguishing mixture from a disintegration nozzle (14) of the jet stream. foaming, topped in injectors (15), expelling said foaming mixture under pressure, facilitating its mixing with the air, and which is expelled outside to through an aerating mesh (9) obtaining an extinguishing foam, expanded and homogeneous.
  • the tank (1) in which the foam generating cannon is located has an independent water tank (11) and a motor module (7) where the motor group (17), the water suction pump, are located (18), the foam injection and dosing system (24), the corresponding flow direction valves that control the passage of the liquids (19, 19 ', 20 and 21) and the control electronics (23).
  • the foam tank can also be incorporated into the tank (1) in its own tank, for example in its lower part, or placed in a tank attached to the helicopter or to the same sling.
  • the device of the invention configured to be used by helicopters consists of a tank (1) that has a support foot (2) or landing gear formed by a tube of resistant material, such as an aluminum alloy, in the form of ring or by reinforcements in the lower part of the tank which also acts as a support foot, such structure serving to support the assembly of said tank (1) on the ground or at the bottom of the water loading point.
  • a support foot (2) or landing gear formed by a tube of resistant material, such as an aluminum alloy, in the form of ring or by reinforcements in the lower part of the tank which also acts as a support foot, such structure serving to support the assembly of said tank (1) on the ground or at the bottom of the water loading point.
  • the body of said tank (1) is formed by a cylindrical element (6) topped off by a buoyancy element (3) that separates the motor module from the water and inferiorly by a lower outlet in an aerator mesh (9) which is the Exit zone (10) of the extinguishing material.
  • this cylinder (6) may suffer a gradual narrowing of the diameter in the lower direction (8).
  • the interior of the tank is partially open and in contact with the air, facilitating the filling of said tank (1) when its immersion in the water and the aeration of The extinguishing mixture.
  • the aerator mesh (9) is formed by a reticular structure of tensioned mesh in which the foaming jet is projected for its exit to the outside.
  • Said cylinder (6) includes in its interior a cylindrical body (4), opened at its two upper and lower ends, said cylinder (4) annularly delimits on its outer perimeter, the water reservoir (11), and internally the barrel of foam formed by an expansion chamber (12) where there is the air inlet, not shown, and of foaming (13) which ends the latter in a disintegration nozzle (14) of the foaming jet, at whose ends some injectors (15) that expel foaming substance under pressure through the aerator mesh (9).
  • buoyancy element (3) constructed as an air chamber and / or with light high buoyancy material is provided that serves to prevent immersion of the motor module in the water when it should loading the tank into a lake, river, raft, etc., and the support foot (2) does not reach its bottom.
  • the motor module (7) is formed by a motor group (17) that drives a water pump (18) that serves to aspirate the water from the water tank (11) and expel the foaming agent under pressure, that is, the mixture of water with the foam. Also in cases where the device cannot be charged by immersion due to the low water depth of the charging point, this pump can suck the water through a vertical pipe, not shown, to fill the water tank (11) ⁇
  • a foam injection and dosing system (24) formed by a pump and calibrated flow is arranged to achieve the foaming solution in the proper proportion, flow direction valves (19, 19 ', 20 and 21) to select the function of filling or injection of the foaming solution, and the corresponding control electronics (23).
  • the preferred method of loading the device is by direct immersion in the water. So that the water load is done in a simple and fast way, the device has been designed as a hollow cylinder with an annular tank around the foam generating barrel so that according to the Archimedes principle, by decreasing the volume of the body that is submerged in a fluid, we decrease the hydrostatic thrust that keeps the body floating and the device easily penetrates the water until This, through the same canyon, overflows by its upper opening filling the water tank (11) in a rapid immersion operation to the buoyancy line.
  • the aerator mesh (9) prevents the introduction of solid bodies into the water tank (11).
  • the foam chamber is filled with foam.
  • the tank is hooked to the loading hook by means of the support cable (22) and the control cables are connected.
  • the operation of the equipment is verified and the helicopter takes flight to the fire zone. Before you must refuel, if the device has not yet been filled with it, to act in front of the fire.
  • Example 1 To fill the water tank (11) the invention provides several procedures.
  • Example 1 To fill the water tank (11) the invention provides several procedures.
  • the tank is filled by direct immersion in the sea, lakes, rivers, rafts etc., with sufficient depth.
  • This procedure is typical of the present invention and an advantageous consequence of its constructive arrangement that provides very rapid filling of the water tank (11), reducing water loading times, avoiding queues of other aircraft at water loading points and increasing the rate of fire discharges.
  • the tank lands on a river, a raft or any other shallow water reservoir, supported by its support foot (2) or landing gear. Since the immersion procedure is not possible to fill the water tank, the suction of the water suction pump (18) operated by the motor group (17) is used, until the water tank (11) is filled. Valves (19 and 20) control the entry of liquid in this way. '
  • the tank is deposited on land, where fire crews fill it with water through hoses through the auxiliary water inlet, not shown.
  • the helicopter is now ready to attack the fire. It rises and approaches the fire zone, firing the foam created by the foam cannon under pressure.
  • the present invention has a foam barrel formed by an expansion chamber (12) of air inlet where the foaming mixture is fired from injectors (15), located at the ends of a disintegration nozzle (14) of the foaming jet and connected to the foaming inlet (13).
  • the sparkling jet is disintegrated with a rotating movement, which facilitates its mixing with the air, due to the presence of directional blades, not shown.
  • the foaming agent is pressurized on the aerator mesh (9), creating the homogeneous and expanded foam, which goes outside through the exit point (10).
  • the aerating mesh (9) is formed by a reticular structure of tensioned mesh in which the foaming jet allows the creation of a homogeneous and expanded extinguishing foam when projected at high pressure.
  • Another way to expel the extinguishing substance and alternative to the use of the foam cannon described above, is to use the rapid water discharge system. This system has two purposes, to serve as an emergency discharge means, when the helicopter needs to release cargo, or if there is a malfunction of the engine group (17) It allows the tank to be used as the previously described known technique of gravity drop.
  • the tank is transported suspended from the cargo hook of the helicopter by means of a sling (22).
  • the sling is preferably used long so that the pilot can see, by vertical reference, the points where he wants to hit, and because it allows him to keep the helicopter away, at a sufficient distance from the fire and the loading points.
  • An electric cable or wireless system, not shown, attached to the sling (22) connects the electronic tank control system (1) with the pilot control knobs in the helicopter cockpit.
  • the pilot can choose between a discharge with a maximum flow of flow for better penetration or a flow of lower flow and more output speed for better coverage. This is done by means of the flow selector on the control panel that modifies the flow and pressure of the water leaving the injectors, acting on the revolutions of the motor group (17) and with the variation of the number of injector nozzles that must intervene, a selection made by means of a selector valve that distributes the water through the injectors. It is understood that in the present case, how many details will not alter or modify the essence of the invention will be variable.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)

Abstract

The invention relates to a fire extinguishing device for in-air use, which uses a tank having two separate and related containers, having a mixture of water and foam, together with a chamber to generate the firefighting foam. The device has electronic control functions, means for dispensing the firefighting foam formed that enables both rapid emptying as well as the dissemination thereof over a wide area, making it possible to perform multiple discharges at will.

Description

DISPOSITIVO EXTINTOR DE INCENDIOS DE USO AEREO  FIRE EXTINGUISHING FIRE DEVICE DEVICE
CAMPO DE LA INVENCION FIELD OF THE INVENTION
La invención relata un dispositivo para la extinción de incendios de los que son aptos para ser transportados en helicóptero y cargarse de agua externamente en cisternas, piscinas, ríos y lagos, etc., con la particularidad de que dispone de medios facilitados y optimizados de carga del agua y de generación de la espuma antiincendios mediante un cañón de espuma extintora .  The invention relates to a device for extinguishing fires of those that are suitable for transport by helicopter and externally loaded with water in cisterns, swimming pools, rivers and lakes, etc., with the particularity that it has facilitated and optimized means of loading of water and the generation of fire-fighting foam by means of a fire extinguishing foam cannon.
ANTECEDENTES BACKGROUND
Los incendios forestales son causa de la ruina de nuestros bosques destruyendo no sólo paisajes y ecosistemas que tardarán mucho en regenerarse, sino también arruinando la riqueza maderera, la industria de la silvicultura, destruyendo o dañando cultivos, construcciones y provocando desgracias en personas y animales .  Forest fires are the cause of the ruin of our forests, destroying not only landscapes and ecosystems that will take a long time to regenerate, but also ruining wood wealth, the forestry industry, destroying or damaging crops, buildings and causing misfortunes in people and animals.
Para hacerles frente se han desplegado numerosos esfuerzos no sólo para prevenirlos, sino fundamentalmente, para atajarlos. Asi, la rápida extinción del fuego se convierte en una prioridad en nuestros días. To cope with them numerous efforts have been made not only to prevent them, but fundamentally, to stop them. Thus, the rapid extinction of fire becomes a priority in our day.
En la actualidad, además de la participación en la labor extintora de cuadrillas de bomberos y demás personas que sobre el terreno luchan contra el fuego, se utilizan con gran provecho aviones y helicópteros que por su facilidad de movimiento pueden acceder a lugares del incendio de otra forma inaccesibles, o a lugares boscosos en que las cuadrillas tardarían o no podrían llegar. En resumen, aviones y helicópteros se benefician de su rapidez en cubrir distancias, y también de su capacidad de carga para arrojar sobre puntos determinados grandes cantidades de agua. Los helicópteros resultan preferibles a las avionetas o hidroplanos, porque pueden repostarse de agua en sitios más diversos. At present, in addition to the participation in the fire brigade fire extinguishing work and other people who fight fire on the ground, airplanes and helicopters are used to great advantage because of their ease of movement they can access places of the otherwise inaccessible fire, or to wooded places where crews would take or could not arrive. In summary, airplanes and helicopters benefit from their speed in covering distances, and also from their carrying capacity to throw large amounts of water over points. Helicopters are preferable to airplanes or hydroplanes, because they can be refilled from water in more diverse places.
El procedimiento habitual para cargar agua en un helicóptero es dotarlo de un recipiente que va suspendido del gancho de carga del helicóptero, sumergir el recipiente sobre la superficie de un lago, por ejemplo, y cuando éste ya se ha llenado levantar el vuelo con la carga de agua. The usual procedure to load water in a helicopter is to provide it with a container that is suspended from the helicopter's load hook, submerge the container on the surface of a lake, for example, and when it has already been filled, lift the flight with the load of water.
Posteriormente, para vaciar el depósito de agua sobre la zona que se escoge, el piloto se sitúa sobre la misma y abre la compuerta de dicho depósito, cayendo el agua por gravedad. El inconveniente es que la descarga de agua se efectúa de golpe, y en consecuencia es poco efectiva. Ello ocasiona que en muchas ocasiones sean necesarias varias pasadas del helicóptero en una determinada zona para en sucesivos lanzamientos corregir las desviaciones de la caída del agua sobre el objetivo motivadas por el viento, por turbulencias, etc. Subsequently, to empty the water tank over the area that is chosen, the pilot sits on it and opens the gate of said tank, the water falling by gravity. The drawback is that the discharge of water is carried out suddenly, and consequently it is not very effective. This causes that in many occasions several passes of the helicopter in a certain area are necessary for successive launches to correct the deviations of the fall of the water on the objective motivated by the wind, by turbulence, etc.
Además, frecuentemente, después de una primera descarga pueden quedar zonas residuales en donde el agua no haya llegado o focos de incendios residuales que conviene atacar de nuevo. Para combatirlo es necesario, con la técnica conocida, efectuar varias pasadas de la aeronave sobre esa misma zona, lo que representa un tiempo excesivo . Debe tenerse en cuenta, además, que en ocasiones y debido a las altas temperaturas producidas en un incendio, el agua puede llegar a volatilizarse antes de llegar al suelo, por lo que resulta ineficaz para su cometido . In addition, frequently, after a first discharge, there may be residual areas where the water has not reached or residual fire sources that should be attacked again. To combat it is necessary, with the known technique, make several passes of the aircraft over that same area, which represents excessive time. It should be taken into account, in addition, that sometimes and due to the high temperatures produced in a fire, water can become volatile before reaching the ground, so it is ineffective for its purpose.
Es por ello que se ha demostrado mucho más efectivo que el agua, su mezcla con sustancias retardadoras o inhibidoras del fuego. Por una parte se evita la rápida vaporización del agua. Por otra, pueden obtenerse películas inhibidoras del fuego en los objetos combustibles que se deseen proteger, tales como los árboles o los edificios. That is why it has proven much more effective than water, its mixture with retarding or fire-inhibiting substances. On the one hand, rapid water vaporization is avoided. On the other hand, fire-inhibiting films can be obtained on combustible objects to be protected, such as trees or buildings.
Adicionalmente, formando una mezcla extintora, con la misma cantidad de agua puede obtenerse mucho más producto a verter y, como decimos, más eficaz. Additionally, by forming an extinguishing mixture, with the same amount of water, much more product to be poured can be obtained and, as we say, more efficient.
Debe por tanto facilitarse la mezcla del compuesto apaga incendios, al mismo tiempo que debe mantenerse simultáneamente la capacidad, en un dispositivo como el de la invención, para la recarga de agua. The mixing of the fire extinguishing compound must therefore be facilitated, while simultaneously maintaining the capacity, in a device such as that of the invention, for water recharge.
La patente española N° 0419040, de Alexander Linkewich, describe la realización de una pasta antiincendios mezclando agua con productos retarda incendios, como el sulfato amónico mezclado con arcilla y un agente aglutinante. Como la carga de dicha pasta requiere hacerse en tierra, la patente propone cargar en los depósitos del avión el producto retarda incendios, para luego, por medios convencionales, cargar el agua, realizándose la mezcla sobre la marcha. Spanish Patent No. 0419040, by Alexander Linkewich, describes the realization of a fire-fighting paste mixing water with fire retardant products, such as ammonium sulfate mixed with clay and a binding agent. How the loading of said paste requires be made on the ground, the patent proposes to load the product in the aircraft tanks to delay fires, and then, by conventional means, to load the water, the mixture being carried out on the fly.
Este sistema adolece del defecto de que es muy difícil mantener la mezcla en condiciones óptimas de utilización. Se requiere una infraestructura terrestre y área compleja porque la mezcla debe ser continuamente removida . This system suffers from the defect that it is very difficult to keep the mixture in optimal conditions of use. A terrestrial infrastructure and complex area is required because the mixture must be continuously removed.
La patente americana US4240507, de Hokkanen, describe una cisterna de utilización aérea. Dispone de una o más aperturas en el fondo para ser rellenada que se cierran con una compuerta. Una segunda cisterna contiene un aditivo a mezclar con el agua. El aparato incluye un mecanismo para controlar la mezcla del aditivo con el agua mediante un par de válvulas asociadas a la carrera de un pistón, de forma que en un caso mezcla agua y aditivo, en otro suelta la mezcla sobre el fuego y finalmente, devuelve el aditivo sobrante y no utilizado a su depósito de almacenamiento. US patent US4240507, of Hokkanen, describes an air use cistern. It has one or more openings in the bottom to be filled that are closed with a gate. A second cistern contains an additive to mix with water. The apparatus includes a mechanism to control the mixing of the additive with the water by means of a pair of valves associated with the stroke of a piston, so that in one case it mixes water and additive, in another case it releases the mixture on the fire and finally, returns leftover and unused additive to your storage tank.
La patente americana US4601345, de Mahrt, describe un dispositivo para mezclar y suministrar una mezcla extintora en un recipiente o cisterna formada por agua y un agente retardador del fuego. Se dispone un recipiente de sustancia retardadora del fuego en la misma estructura del aparato y otra cisterna con agua suspendida en el aire. Por medio de una bomba de inyección se traslada la sustancia retardadora de un recipiente a otro para ser mezclada con el agua que es cargada por métodos convencionales . La rotación de una hélice ubicada en el extremo de la lanza de inyección sirve para remover y conseguir acelerar la mezcla. La patente PCT W094/28975, de As LuftTransport , describe un tanque para utilizar con una mezcla extintora que dispone de medios para evitar la rotación del módulo, efectuar el control por parte del piloto de sus funciones mediante comunicaciones por radio, junto con un dispositivo que por medio de un cono que se desplaza a discreción del piloto, aceptando más o menos mezcla, permite una discreta dosificación del vertido de la mezcla. El vertido se efectúa por gravedad y la sustancia retardadora es ubicada directamente en el fondo del tanque para que la mezcla con el agua se realice en su mutuo contacto. US patent US4601345, by Mahrt, describes a device for mixing and supplying an extinguishing mixture in a container or cistern formed by water and a fire retardant agent. A container of fire retardant substance is arranged in the same structure of the apparatus and another tank with water suspended in the air. By means of an injection pump, the retarding substance is transferred from one container to another to be mixed with the water that is loaded by conventional methods. The rotation of a propeller located at the end of the injection lance serves to remove and accelerate the mixture. The patent PCT W094 / 28975, of As LuftTransport, describes a tank for use with an extinguishing mixture that has means to prevent the rotation of the module, to carry out the control by the pilot of its functions by means of radio communications, together with a device that through a cone that moves at the discretion of the pilot, accepting more or less mixing, allows a discrete dosage of the pouring of the mixture. The pouring is done by gravity and the retarding substance is located directly at the bottom of the tank so that the mixture with the water is carried out in their mutual contact.
Desafortunadamente, todos los documentos descritos fallan en proporcionar un medio para elaborar de forma eficiente y eficaz espuma apaga incendios que requiere para su formación el concurso del aire. Al realizar la mezcla de la pasta retardadora de incendios directamente con el agua, se requiere bastante tiempo para que el aditivo se mezcle adecuadamente, siendo un remedio ineficaz agitar la mezcla o, en otro caso, esperar que al verterla sobre el incendio exista suficiente tiempo en la caída para que la espuma se forme en el contacto de la mezcla con el aire. Las consecuencias negativas son el verter una mezcla extintora deficiente, además del tiempo considerable empleado en la formación de la mezcla que se propone utilizar . Unfortunately, all the documents described fail to provide a means to efficiently and effectively produce foam extinguishes fires that the air contest requires for its formation. When mixing the fire retardant paste directly with the water, it takes a long time for the additive to mix properly, being an ineffective remedy to stir the mixture or, otherwise, wait for it to pour enough time into the fire in the fall so that the foam forms at the contact of the mixture with the air. The negative consequences are the pouring of a deficient extinguishing mixture, in addition to the considerable time used in the formation of the mixture that is proposed to be used.
Al ser además el tiempo de descarga muy corto, la extinción se reduce a la superficie de impacto. As the discharge time is also very short, the extinction is reduced to the impact surface.
La patente PCT W09423797, de Baker R. , describe un tanque suministrador de espuma para extinguir incendios que utiliza botellas de aire comprimido cuya presión permite expulsar la mezcla espumante por unas toberas controladas por válvulas que proyectan la espuma sobre unas pantallas semiesféricas de aireación, para su expansión . Al precisar dicho tanque de la utilización de aire comprimido, sus necesidades de mantenimiento son engorrosas. Depende además de una fuente externa de mantenimiento, necesitando asistencia terrestre para ser operativo. Carece de medios para la mezcla controlada de espumante y agua, realizándola pasivamente en la bodega del tanque que se rellena en tierra. Al no disponer de carga autónoma y sucesiva del agua, el rendimiento extintor del tanque disminuye notablemente.The patent PCT W09423797, of Baker R., describes a foam supply tank for extinguishing fires that uses bottles of compressed air whose pressure allows to expel the foaming mixture by means of nozzles controlled by valves that project the foam on semi-spherical aeration screens, for its expansion By requiring said tank for the use of compressed air, its maintenance needs are cumbersome. It also depends on an external source of maintenance, requiring ground assistance to be operational. It lacks means for the controlled mixing of sparkling water and water, making it passively in the cellar of the tank that is filled on land. By not having autonomous and successive water loading, the extinguishing performance of the tank decreases markedly.
Adicionalmente, la descarga de la espuma se produce prácticamente por gravedad pues no genera fuerza impulsora suficiente para disparar la espuma. Additionally, the discharge of the foam occurs practically by gravity as it does not generate sufficient driving force to fire the foam.
Vemos pues que en los sistemas conocidos, al producirse la descarga del agua únicamente por gravedad, aunque se le mezclen elementos espumógenos y se produzca la aireación del espumante durante la descarga, son poco efectivos . Por otro lado, la espuma que se alcanza no es homogénea y expandida, lo que provoca una importante pérdida de agua, sin que se puedan aprovechar todas las ventajas de dicha espuma como elemento extintor. We see that in the known systems, when the water is discharged only by gravity, although foaming elements are mixed and the sparkling aeration occurs during the discharge, they are not very effective. On the other hand, the foam that is reached is not homogeneous and expanded, which causes a significant loss of water, without taking advantage of all the advantages of said foam as an extinguishing element.
El dispositivo de la invención, en cambio, no actúa por gravedad sino por presión de una bomba expulsora que proyecta la sustancia extintora del fuego, pudiendo ser aplicado a discreción y en sucesivas aplicaciones, subsanando de esta forma los inconvenientes antes señalados . The device of the invention, on the other hand, does not act by gravity but by the pressure of an ejector pump that projects the fire extinguishing substance, and can be applied at its discretion and in successive applications, thus correcting the aforementioned drawbacks.
La espuma se descarga a una presión determinada completamente expandida y homogénea, lo que representa obtener un producto extintor más eficaz y un mayor rendimiento de la mezcla. The foam is discharged at a determined pressure completely expanded and homogeneous, which means obtaining a more effective extinguishing product and greater mixing performance.
Otra ventaja adicional es que en el nuevo dispositivo se utiliza mucha menos agua que en los dispositivos convencionales . Ello disminuye la carga de la aeronave y facilita su manejo, pudiendo hacer vuelos a baja velocidad e incluso en estacionario, lo que se traduce en una extinción del fuego mucho más precisa y efectiva. Another additional advantage is that much less water is used in the new device than in conventional devices. This reduces the load of the aircraft and facilitates its handling, being able to make flights at low speed and even in stationary, which translates into a much more precise and effective fire extinguishing.
BREVE DESCRIPCION DE LA INVENCION BRIEF DESCRIPTION OF THE INVENTION
Para hacer frente a estos problemas se ha diseñado la presente invención que describe un dispositivo extintor de incendios de uso en helicópteros, que posee un cañón generador de espuma extintora formado por una cámara de expansión de espuma que recibe una mezcla espumante de agua y espumógeno extintor de incendios, a una presión y caudal determinado, desde una tobera de disgregación del chorro de espumante terminada en inyectores de dicha mezcla, combinándose la citada mezcla con aire en dicha cámara de expansión hasta llegar a ser proyectada, a presión, contra una malla aireadora, lo que forma una espuma extxntora completamente expandida y homogénea. To cope with these problems, the present invention has been designed which describes a fire extinguishing device for use in helicopters, which has an extinguishing foam generating barrel formed by a foam expansion chamber that receives a foaming mixture of water and foam fire extinguisher, at a given pressure and flow rate, from a disintegration nozzle of the sparkling jet terminated in injectors of said mixture, said mixture being combined with air in said expansion chamber until it is projected, under pressure, against an aerating mesh, which forms a fully expanded and homogeneous extruder foam.
La presente invención está diseñada para incorporarse en tanques de los que van suspendidos por una eslinga, por ejemplo de acero, textil, etc. The present invention is designed to be incorporated into tanks that are suspended by a sling, for example steel, textile, etc.
Dichos tanques disponen de depósitos independientes para el agua y el espumógeno, este último preferiblemente situado en la zona inferior del tanque para dar estabilidad al conjunto bajando el centro de gravedad, y un módulo motor en donde se sitúa un motor que alimenta una bomba de succión para aspirar el agua y para expulsar a presión el espumante, un sistema de inyección y dosificación del espumógeno tal como el formado por una bomba de presión y flujo calibrado que va conectada a la bomba de agua o directamente al depósito del agua, para conseguir la solución espumante en la proporción adecuada, válvulas de dirección de flujo para seleccionar la función de llenado o la inyección de la solución espumante, y la correspondiente electrónica de control . These tanks have independent tanks for water and foam, the latter preferably located in the lower area of the tank to give stability to the assembly by lowering the center of gravity, and a motor module where a motor that feeds a suction pump is located to aspirate the water and to expel the foaming agent under pressure, a foam injection and dosing system such as that formed by a calibrated pressure and flow pump that is connected to the water pump or directly to the water tank, to achieve Foaming solution in the right proportion, flow direction valves to select the filling or injection function of the foaming solution, and the corresponding control electronics.
BREVE EXPLICACION DE LOS DIBUJOS BRIEF EXPLANATION OF THE DRAWINGS
Para una mejor interpretación del objeto de la invención se describe a continuación varios casos de realización práctica, a titulo de ejemplo no limitativo de la misma, acompañándose de los correspondientes dibujos. For a better interpretation of the object of the invention, several embodiments are described below. practice, as a non-limiting example thereof, accompanied by the corresponding drawings.
La figura 1 muestra una representación de un tanque según la invención identificando las partes que lo forman . Figure 1 shows a representation of a tank according to the invention identifying the parts that form it.
La figura 2 es una representación esquemática del módulo motor ubicado en la zona superior del tanque de la figura 1. Figure 2 is a schematic representation of the engine module located in the upper area of the tank of Figure 1.
La figura 3 representa esquemáticamente y de forma simplificada el cañón generador de espuma del dispositivo de la invención. Figure 3 schematically and simplely depicts the foam generating barrel of the device of the invention.
La figura 4 muestra una representación de un helicóptero con un dispositivo según la invención, cargando agua de una superficie como la de un lago, estanque o similar. La figura 5 muestra una representación del helicóptero de la figura anterior en la acción de disparar la espuma homogénea y expandida que se obtiene según la invención. Figure 4 shows a representation of a helicopter with a device according to the invention, loading water from a surface such as that of a lake, pond or the like. Figure 5 shows a representation of the helicopter of the previous figure in the action of firing the homogeneous and expanded foam that is obtained according to the invention.
EXPLICACION DETALLADA DE UNA REALIZACION PREFERENTE DETAILED EXPLANATION OF A PREFERRED EMBODIMENT
Consiste la invención en un dispositivo extintor de incendios de uso aéreo que incorpora un cañón generador de espuma extintora formado por una cámara de expansión (12) de entrada de aire que recibe mezcla espumante y extintora desde una tobera de disgregación (14) del chorro de espumante, rematada en inyectores (15), expulsando dicha mezcla espumante a presión, facilitando su mezcla con el aire, y que es expulsada al exterior a través de una malla aireadora (9) obteniéndose una espuma extintora, expandida y homogénea. The invention consists of a fire extinguisher device for aerial use that incorporates an extinguishing foam generating barrel formed by an air inlet expansion chamber (12) that receives foaming and extinguishing mixture from a disintegration nozzle (14) of the jet stream. foaming, topped in injectors (15), expelling said foaming mixture under pressure, facilitating its mixing with the air, and which is expelled outside to through an aerating mesh (9) obtaining an extinguishing foam, expanded and homogeneous.
El tanque (1) en el que se halla el cañón generador de espuma, dispone de un depósito independiente para el agua (11) y un módulo motor (7) donde se sitúan el grupo motor (17), la bomba de aspiración de agua (18), el sistema de inyección y dosificación del espumógeno (24), las correspondientes válvulas de dirección de flujo que controlan los pasos de los líquidos (19, 19', 20 y 21) y la electrónica de control (23) . El depósito del espumógeno puede incorporarse asimismo en el tanque (1) en un depósito propio, por ejemplo en su parte inferior, o bien situarse en un depósito acoplado al helicóptero o a la misma eslinga. The tank (1) in which the foam generating cannon is located, has an independent water tank (11) and a motor module (7) where the motor group (17), the water suction pump, are located (18), the foam injection and dosing system (24), the corresponding flow direction valves that control the passage of the liquids (19, 19 ', 20 and 21) and the control electronics (23). The foam tank can also be incorporated into the tank (1) in its own tank, for example in its lower part, or placed in a tank attached to the helicopter or to the same sling.
El dispositivo de la invención configurado para ser utilizado por helicópteros consiste en un tanque (1) que dispone de un pie de apoyo (2) o tren de aterrizaje formado por un tubo de material resistente, tal como una aleación del aluminio, en forma de anillo o por unos refuerzos en la parte inferior del tanque que actúa asimismo como pie de apoyo, sirviendo tal estructura para apoyar el conjunto de dicho tanque (1) en el suelo o en el fondo del punto de carga de agua. The device of the invention configured to be used by helicopters consists of a tank (1) that has a support foot (2) or landing gear formed by a tube of resistant material, such as an aluminum alloy, in the form of ring or by reinforcements in the lower part of the tank which also acts as a support foot, such structure serving to support the assembly of said tank (1) on the ground or at the bottom of the water loading point.
El cuerpo de dicho tanque (1) está formado por un elemento cilindrico (6) rematado superiormente por un elemento de flotabilidad (3) que separa el modulo motor del agua e inferiormente por una salida inferior en una malla aireadora (9) que es la zona de salida (10) de la materia extintora. En alguna realización este cilindro (6) puede sufrir un estrechamiento gradual del diámetro en la dirección inferior (8) . The body of said tank (1) is formed by a cylindrical element (6) topped off by a buoyancy element (3) that separates the motor module from the water and inferiorly by a lower outlet in an aerator mesh (9) which is the Exit zone (10) of the extinguishing material. In some embodiment this cylinder (6) may suffer a gradual narrowing of the diameter in the lower direction (8).
El interior del tanque, superiormente, tal como se muestra en los dibujos que acompañan la invención, está parcialmente abierto y en contacto con el aire, facilitando el llenado de dicho tanque (1) cuando se produce su inmersión en el agua y la aireación de la mezcla extintora. The interior of the tank, superiorly, as shown in the drawings accompanying the invention, is partially open and in contact with the air, facilitating the filling of said tank (1) when its immersion in the water and the aeration of The extinguishing mixture.
La malla aireadora (9) está formada por una estructura reticular de malla tensada en los que se proyecta el chorro de espumante para su salida al exterior. Dicho cilindro (6) incluye en su interior un cuerpo cilindrico (4), abierto por sus dos extremo, superior e inferior, dicho cilindro (4) delimita anularmente en su perímetro exterior, el depósito del agua (11), e internamente el cañón de espuma formado por una cámara de expansión (12) donde existen la entrada de aire, no mostrada, y de espumante (13) que termina esta última en una tobera de disgregación (14) del chorro de espumante, en cuyos extremos se colocan unos inyectores (15) que expulsan sustancia espumante a presión a través de la malla aireadora (9) . The aerator mesh (9) is formed by a reticular structure of tensioned mesh in which the foaming jet is projected for its exit to the outside. Said cylinder (6) includes in its interior a cylindrical body (4), opened at its two upper and lower ends, said cylinder (4) annularly delimits on its outer perimeter, the water reservoir (11), and internally the barrel of foam formed by an expansion chamber (12) where there is the air inlet, not shown, and of foaming (13) which ends the latter in a disintegration nozzle (14) of the foaming jet, at whose ends some injectors (15) that expel foaming substance under pressure through the aerator mesh (9).
En las realizaciones que lo precisan, se prevé la utilización de un elemento de flotabilidad (3) construido como una cámara de aire y/o con material ligero de alta flotabilidad que sirve para impedir la inmersión del módulo motor en el agua cuando debe cargarse el tanque en un lago, rio, balsa, etc., y el pie de apoyo (2) no alcanza su fondo. In the embodiments that require it, the use of a buoyancy element (3) constructed as an air chamber and / or with light high buoyancy material is provided that serves to prevent immersion of the motor module in the water when it should loading the tank into a lake, river, raft, etc., and the support foot (2) does not reach its bottom.
El módulo motor (7) está formado por un grupo motor (17) que acciona una bomba de agua (18) que sirve para aspirar el agua del depósito de agua (11) y expulsar a presión el espumante, esto es, la mezcla de agua con el espumógeno. Asimismo en los supuestos donde el dispositivo no pueda cargarse por inmersión debido a la poca profundidad de agua del punto de carga, esta bomba puede aspirar el agua a través de una canalización vertical, no mostrada, para llenar el depósito de agua (11) · Se dispone un sistema de inyección y dosificación del espumógeno (24) formado por una bomba y flujo calibrado para conseguir la solución espumante en la proporción adecuada, válvulas de dirección de flujo (19, 19', 20 y 21) para seleccionar la función de llenado o la inyección de la solución espumante, y la correspondiente electrónica de control (23) . The motor module (7) is formed by a motor group (17) that drives a water pump (18) that serves to aspirate the water from the water tank (11) and expel the foaming agent under pressure, that is, the mixture of water with the foam. Also in cases where the device cannot be charged by immersion due to the low water depth of the charging point, this pump can suck the water through a vertical pipe, not shown, to fill the water tank (11) · A foam injection and dosing system (24) formed by a pump and calibrated flow is arranged to achieve the foaming solution in the proper proportion, flow direction valves (19, 19 ', 20 and 21) to select the function of filling or injection of the foaming solution, and the corresponding control electronics (23).
El método de carga de agua preferente del dispositivo es por inmersión directa en el agua. Para que la carga de agua se haga de manera sencilla y rápida, se ha diseñado el dispositivo como un cilindro hueco con un depósito anular alrededor del cañón generador de espuma para que según el principio de Arquímedes, al disminuir el volumen del cuerpo que se sumerge en un fluido, disminuimos el empuje hidrostático que mantiene el cuerpo flotando y el dispositivo penetra con facilidad en el agua hasta que ésta, a través del mismo cañón, se desborda por su apertura superior llenando el depósito de agua (11) en una rápida operación de inmersión hasta la linea de flotabilidad. La malla aireadora (9) impide la introducción de cuerpos sólidos al interior del depósito de agua (11) . The preferred method of loading the device is by direct immersion in the water. So that the water load is done in a simple and fast way, the device has been designed as a hollow cylinder with an annular tank around the foam generating barrel so that according to the Archimedes principle, by decreasing the volume of the body that is submerged in a fluid, we decrease the hydrostatic thrust that keeps the body floating and the device easily penetrates the water until This, through the same canyon, overflows by its upper opening filling the water tank (11) in a rapid immersion operation to the buoyancy line. The aerator mesh (9) prevents the introduction of solid bodies into the water tank (11).
El funcionamiento del dispositivo de la invención es el siguiente : The operation of the device of the invention is as follows:
En el lugar base del helicóptero, se ha llenado de espumogeno la cámara de reserva de espumogeno. Cuando se recibe una llamada de emergencia para acudir a la extinción de un incendio, se engancha el tanque al gancho de carga mediante el cable de sustentación (22) y se conectan los cables de control. Se verifica el funcionamiento del equipo y el helicóptero emprende el vuelo dirigiéndose a la zona del incendio. Antes deberá repostar agua, si el dispositivo aún no ha sido llenado con ella, para poder actuar frente al fuego. At the base place of the helicopter, the foam chamber is filled with foam. When an emergency call is received to go to the extinction of a fire, the tank is hooked to the loading hook by means of the support cable (22) and the control cables are connected. The operation of the equipment is verified and the helicopter takes flight to the fire zone. Before you must refuel, if the device has not yet been filled with it, to act in front of the fire.
Para llenar el depósito de agua (11) la invención prevé varios procedimientos . Ejemplo 1 To fill the water tank (11) the invention provides several procedures. Example 1
El tanque se llena por inmersión directa en el mar, lagos, ríos, balsas etc., con suficiente profundidad.  The tank is filled by direct immersion in the sea, lakes, rivers, rafts etc., with sufficient depth.
Este procedimiento es típico de la presente invención y una consecuencia ventajosa de su disposición constructiva que proporciona un llenado muy rápido del depósito de agua (11) , disminuyendo los tiempos de carga de agua, evitando colas de espera de las otras aeronaves en los puntos de carga de agua y aumentando la cadencia de descargas sobre el incendio. This procedure is typical of the present invention and an advantageous consequence of its constructive arrangement that provides very rapid filling of the water tank (11), reducing water loading times, avoiding queues of other aircraft at water loading points and increasing the rate of fire discharges.
Ejemplo 2 Example 2
El tanque aterriza sobre un rio, una balsa o cualquier otro depósito de agua de poca profundidad, apoyado en su pie de apoyo (2) o tren de aterrizaje. Como para llenar el tanque de agua el procedimiento de inmersión no es posible, se utiliza la succión de la bomba de aspiración de agua (18) accionada por el grupo motor (17), hasta llenar el depósito de agua (11) . Unas válvulas (19 y 20) controlan la entrada de liquido por esta vía.' The tank lands on a river, a raft or any other shallow water reservoir, supported by its support foot (2) or landing gear. Since the immersion procedure is not possible to fill the water tank, the suction of the water suction pump (18) operated by the motor group (17) is used, until the water tank (11) is filled. Valves (19 and 20) control the entry of liquid in this way. '
Ejemplo 3 Example 3
El tanque es depositado en tierra, donde los equipos de bomberos lo llenan de agua mediante mangueras por medio de la entrada auxiliar de agua, no representada.  The tank is deposited on land, where fire crews fill it with water through hoses through the auxiliary water inlet, not shown.
El helicóptero está ya listo para atacar el fuego. Se eleva y aproxima a la zona del incendio, disparando a presión la espuma creada por el cañón de espuma. La mezcla del espumante con el aire, proyectado a presión a través de la malla aireadora (9), crea una espuma extintora plenamente homogénea y totalmente expandida. The helicopter is now ready to attack the fire. It rises and approaches the fire zone, firing the foam created by the foam cannon under pressure. The mixture of the sparkling with the air, projected under pressure through the aerating mesh (9), creates a fully homogeneous and fully expanded extinguishing foam.
La proporción de la mezcla extintora es muy eficiente, de forma que se genera mucha espuma a partir de pequeñas cantidades de espumógeno. La utilización del agua es también más económica, permitiendo que con la misma cantidad de agua en el depósito se puedan rociar mayores extensiones de terreno que sin utilizar la mezcla espumante . Para facilitar la creación de espuma la presente invención dispone de un cañón de espuma formado por una cámara de expansión (12) de entrada de aire donde se dispara la mezcla espumante desde unos inyectores (15), situados en los extremos de una tobera de disgregación (14) del chorro de espumante y conectada a la entrada de espumante (13) . El chorro de espumante sale disgregado con un movimiento giratorio, lo que facilita su mezcla con el aire, debido a la presencia de álabes direccionales, no mostrados. The proportion of the extinguishing mixture is very efficient, so that a lot of foam is generated from small amounts of foam. The use of water is also cheaper, allowing it The amount of water in the tank can be sprayed with greater areas of land than without using the foaming mixture. To facilitate the creation of foam, the present invention has a foam barrel formed by an expansion chamber (12) of air inlet where the foaming mixture is fired from injectors (15), located at the ends of a disintegration nozzle (14) of the foaming jet and connected to the foaming inlet (13). The sparkling jet is disintegrated with a rotating movement, which facilitates its mixing with the air, due to the presence of directional blades, not shown.
El espumante es impulsado a presión sobre la malla aireadora (9) , creando la espuma homogénea y expandida, que sale al exterior por el punto de salida (10) . La malla aireadora (9) está formada por una estructura reticular de malla tensada en los que al proyectarse a alta presión el chorro de espumante permite la creación de una espuma extintora homogénea y expandida. Adicionalmente, otra forma de expulsar la sustancia extintora y alternativa a la utilización del cañón de espuma descrito anteriormente, es utilizar el sistema de descarga rápida de agua. Dicho sistema tiene dos finalidades, servir como medio de descarga de emergencia, cuando el helicóptero precisa liberar carga, o si hay un mal funcionamiento del grupo motor (17) permite utilizar el depósito cual la técnica conocida anteriormente descrita de caída por gravedad. The foaming agent is pressurized on the aerator mesh (9), creating the homogeneous and expanded foam, which goes outside through the exit point (10). The aerating mesh (9) is formed by a reticular structure of tensioned mesh in which the foaming jet allows the creation of a homogeneous and expanded extinguishing foam when projected at high pressure. Additionally, another way to expel the extinguishing substance and alternative to the use of the foam cannon described above, is to use the rapid water discharge system. This system has two purposes, to serve as an emergency discharge means, when the helicopter needs to release cargo, or if there is a malfunction of the engine group (17) It allows the tank to be used as the previously described known technique of gravity drop.
El tanque se transporta suspendido del gancho de carga del helicóptero mediante una eslinga (22) . La eslinga se utiliza preferentemente larga para que el piloto pueda ver, mediante referencia vertical, los puntos donde desea incidir, y porque le permite mantener alejado el helicóptero, a suficiente distancia del fuego y de los puntos de carga. The tank is transported suspended from the cargo hook of the helicopter by means of a sling (22). The sling is preferably used long so that the pilot can see, by vertical reference, the points where he wants to hit, and because it allows him to keep the helicopter away, at a sufficient distance from the fire and the loading points.
También es importante la longitud de dicha eslinga (22) para evitar que el flujo de aire descendente producido por las palas del rotor del helicóptero avive el fuego. Also important is the length of said sling (22) to prevent the downward flow of air produced by the blades of the helicopter rotor from fanning the fire.
Un cable eléctrico o un sistema inalámbrico, no mostrados, sujeto a la eslinga (22) conecta el sistema electrónico de control del tanque (1) con los mandos de control del piloto en la cabina del helicóptero. An electric cable or wireless system, not shown, attached to the sling (22) connects the electronic tank control system (1) with the pilot control knobs in the helicopter cockpit.
Es de tener en cuenta que dependiendo del tipo de intensidad del fuego, el piloto puede elegir entre una descarga con un flujo máximo de caudal para una mejor penetración o un flujo de menor caudal y más velocidad de salida para una mejor cobertura. Ello se realiza mediante el selector de flujo que tiene en el panel de control que modifica el caudal y la presión del agua que sale por los inyectores, al actuar sobre las revoluciones del grupo motor (17) y con la variación del número de boquillas inyectoras que deben intervenir, selección que se efectúa mediante una válvula selectora que distribuye el agua por los inyectores. Se sobreentiende que en el presente caso serán variables cuantos detalles no alteren o modifiquen la esencia de la invención. It should be borne in mind that depending on the type of fire intensity, the pilot can choose between a discharge with a maximum flow of flow for better penetration or a flow of lower flow and more output speed for better coverage. This is done by means of the flow selector on the control panel that modifies the flow and pressure of the water leaving the injectors, acting on the revolutions of the motor group (17) and with the variation of the number of injector nozzles that must intervene, a selection made by means of a selector valve that distributes the water through the injectors. It is understood that in the present case, how many details will not alter or modify the essence of the invention will be variable.

Claims

REIVINDICACIONES
1. - DISPOSITIVO EXTINTOR DE INCENDIOS DE USO AEREO, del tipo que utilizan un recipiente con la carga extintora, con medios de control por parte del piloto de su apertura y descarga, y que utilizan como materia extintora una mezcla de sustancia inhibidora o retardadora del fuego y agua CARACTERIZADO por estar formado por un tanque (1) con un cuerpo cilindrico (6) que dispone de un cilindro interior (4), abierto por su parte superior e inferior, delimitando un depósito de agua (11) en su zona anular exterior, accesible y comunicado por la parte superior de dicho cilindro interior (4), e internamente por un cilindro que actúa de cámara de expansión (12) durante la descarga de espuma y como entrada de agua durante la carga por inmersión; dicha cámara de expansión (12) recibe, impulsada a presión, mezcla espumante y extintora desde una tobera de disgregación (14) del chorro de espumante. 1. - FIRE EXTINGUISHING FIRE DEVICE DEVICE, of the type that uses a container with the extinguishing load, with means of control by the pilot of its opening and unloading, and that use as a extinguishing material a mixture of inhibitory or retarding substance of the fire and water CHARACTERIZED by being formed by a tank (1) with a cylindrical body (6) that has an inner cylinder (4), open at the top and bottom, delimiting a water tank (11) in its annular area external, accessible and communicated by the upper part of said inner cylinder (4), and internally by a cylinder that acts as an expansion chamber (12) during foam discharge and as a water inlet during immersion loading; said expansion chamber (12) receives, driven under pressure, foaming and extinguishing mixture from a disintegration nozzle (14) of the foaming jet.
2. - DISPOSITIVO EXTINTOR DE INCENDIOS DE USO AEREO, según la reivindicación 1, CARACTERIZADO porque en la zona inferior (10) de dicha cámara de expansión (12) está dispuesta una malla aireadora (9) . 2. - AIR FIRE EXTINGUISHING DEVICE DEVICE, according to claim 1, CHARACTERIZED because in the lower zone (10) of said expansion chamber (12) an air mesh (9) is arranged.
3. - DISPOSITIVO EXTINTOR DE INCENDIOS DE USO AEREO, según las reivindicaciones anteriores, CARACTERIZADO porque dicha malla aireadora (9) está formada por una estructura reticular de malla tensada. 3. - FIRE EXTINGUISHING DEVICE FOR AIR USE, according to the preceding claims, CHARACTERIZED because said aerating mesh (9) is formed by a reticular structure of tensioned mesh.
4. - DISPOSITIVO EXTINTOR DE INCENDIOS DE USO AEREO, según las reivindicaciones anteriores, CARACTERIZADO porque para facilitar la generación de espuma extintora, dichas toberas de disgregación utilizan inyectores (15) . 4. - FIRE USE FIRE EXTINGUISHING DEVICE, according to the preceding claims, CHARACTERIZED because to facilitate the generation of extinguishing foam, said disintegration nozzles use injectors (15).
5. - DISPOSITIVO EXTINTOR DE INCENDIOS DE USO AEREO, según las reivindicaciones anteriores, CARACTERIZADO porque dicho tanque (1) dispone de un pie de apoyo (2) . 5. - FIRE USE FIRE EXTINGUISHING DEVICE, according to the preceding claims, CHARACTERIZED because said tank (1) has a support foot (2).
6. - DISPOSITIVO EXTINTOR DE INCENDIOS DE USO AEREO, según las reivindicaciones anteriores, CARACTERIZADO porque dispone de medios de control y monitorizacion del uso de dicho dispositivo. 6. - FIRE USE FIRE EXTINGUISHING DEVICE, according to the preceding claims, CHARACTERIZED because it has control and monitoring means for the use of said device.
7. - DISPOSITIVO EXTINTOR DE INCENDIOS DE USO AEREO, según las reivindicaciones anteriores, CARACTERIZADO porque dicho tanque (1) está rematado superiormente por un módulo motor (7) . 7. - FIRE USE FIRE EXTINGUISHING DEVICE, according to the preceding claims, CHARACTERIZED because said tank (1) is topped off by a motor module (7).
8. - DISPOSITIVO EXTINTOR DE INCENDIOS DE USO AEREO, según las reivindicaciones anteriores, CARACTERIZADO porque dicho tanque dispone de un elemento de flotabilidad (3) configurado para impedir la inmersión de dicho módulo motor (6) cuando dicho tanque (1) es dejado flotar en el agua. 8. - FIRE USE FIRE EXTINGUISHING DEVICE, according to the preceding claims, CHARACTERIZED because said tank has a buoyancy element (3) configured to prevent the immersion of said motor module (6) when said tank (1) is allowed to float in water.
9.- DISPOSITIVO EXTINTOR DE INCENDIOS DE USO AEREO, según las reivindicaciones anteriores, CARACTERIZADO porque uno de los medios de llenado de agua está formado por una o más canalizaciones tubulares verticales, transportando el agua succionada por bombas de impulsión (18), impulsadas por el grupo motor (17) a dicho depósito de agua (11) , bajo el control de unas válvulas (19 y 20) . 9.- FIRE USE FIRE EXTINGUISHING DEVICE, according to the preceding claims, CHARACTERIZED because one of the water filling means is formed by one or more vertical tubular pipes, transporting the water sucked by discharge pumps (18), driven by the engine group (17) to said water tank (11), under the control of valves (19 and 20).
10. - DISPOSITIVO EXTINTOR DE INCENDIOS DE USO AEREO, según las reivindicaciones anteriores, CARACTERIZADO porque la reserva de espumógeno se sitúa en la zona inferior de dicho tanque (1) . 10. - FIRE USE FIRE EXTINGUISHING DEVICE, according to the preceding claims, CHARACTERIZED because the foam reserve is located in the lower area of said tank (1).
11. - DISPOSITIVO EXTINTOR DE INCENDIOS DE USO AEREO, según las reivindicaciones 1 a 9, CARACTERIZADO porque la reserva de espumógeno se sitúa en un depósito acoplado al helicóptero. 11. - FIRE USE FIRE EXTINGUISHING DEVICE, according to claims 1 to 9, CHARACTERIZED because the foam reserve is located in a tank attached to the helicopter.
12. - DISPOSITIVO EXTINTOR DE INCENDIOS DE USO AEREO, según las reivindicaciones anteriores, CARACTERIZADO porque dichos medios controlados de expulsión de la materia extintora consisten en regular el selector de flujo en el panel de control del piloto, actuando sobre la alimentación de dicha bomba de aspiración de agua (18) que distribuye la mezcla espumante en un caudal y presión dadas. 12. - FIRE EXTINGUISHING FIRE DEVICE DEVICE, according to the preceding claims, CHARACTERIZED because said controlled means of expelling the extinguishing material consist of regulating the flow selector in the pilot control panel, acting on the feeding of said pump of water aspiration (18) that distributes the foaming mixture at a given flow rate and pressure.
13. - DISPOSITIVO EXTINTOR DE INCENDIOS DE USO AEREO, según las reivindicaciones anteriores, CARACTERIZADO porque dichos medios de sustentación de dicho tanque (1) consisten en una eslinga (22) con longitud adecuada para que el piloto pueda tener una visión vertical del tanque (1) · 13. - FIRE USE FIRE EXTINGUISHING DEVICE, according to the preceding claims, CHARACTERIZED because said means of support of said tank (1) consist of a sling (22) with adequate length so that the pilot can have a vertical view of the tank ( one) ·
14. - DISPOSITIVO EXTINTOR DE INCENDIOS DE USO AEREO, según las reivindicaciones anteriores, CARACTERIZADO porque dicho cilindro (6) experimenta inferiormente un estrechamiento gradual (8) de su diámetro. 14. - AIR FIRE EXTINGUISHING DEVICE DEVICE, according to the preceding claims, CHARACTERIZED because said cylinder (6) inferiorly experiences a gradual narrowing (8) of its diameter.
PCT/ES2015/000032 2014-03-13 2015-03-12 Fire extinguishing device for in-air use WO2015136128A1 (en)

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Application Number Priority Date Filing Date Title
CA2942093A CA2942093C (en) 2014-03-13 2015-03-12 Fire extinguisher device for aerial use
US15/125,416 US10201721B2 (en) 2014-03-13 2015-03-12 Fire extinguishing device for in-air use
EP22180566.6A EP4098330A1 (en) 2014-03-13 2015-03-12 Fire extinguisher device for aerial use
AU2015228725A AU2015228725B2 (en) 2014-03-13 2015-03-12 Fire extinguishing device for in-air use
EP15762071.7A EP3117872A4 (en) 2014-03-13 2015-03-12 Fire extinguishing device for in-air use
NZ724226A NZ724226A (en) 2014-03-13 2015-03-12 Fire extinguishing device for in-air use

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ES201400202A ES2548189B1 (en) 2014-03-13 2014-03-13 Fire extinguishing device for aerial use
ESP201400202 2014-03-13

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WO2015136128A8 WO2015136128A8 (en) 2016-10-27

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EP (2) EP4098330A1 (en)
AU (1) AU2015228725B2 (en)
CA (1) CA2942093C (en)
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ES (1) ES2548189B1 (en)
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9555886B1 (en) 2014-04-22 2017-01-31 Oubada Hawass Multi-modular aerial firefighting control method and apparatus
EP3551298A4 (en) * 2016-12-09 2020-06-24 Oubada Hawass Aerial fluid delivery method and apparatus

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11505330B2 (en) * 2016-08-20 2022-11-22 Modern Technology Solutions, Inc. Refueling system and systems with end effectors
CN109453487A (en) * 2018-11-21 2019-03-12 航宇救生装备有限公司 A kind of Novel firefighting well-bucket
CN110562457B (en) * 2019-08-30 2020-09-18 南京精微迅智能科技有限公司 Seeding device for agricultural unmanned aerial vehicle
CN113018722A (en) * 2019-12-25 2021-06-25 应急管理部消防产品合格评定中心 Airborne bi-component water-based fire extinguishing device for unmanned aerial vehicle
EP4093518A1 (en) 2020-01-24 2022-11-30 Sukay, Larry Consolidated aerial high capacity foam firefighting system
US11484737B2 (en) * 2020-05-29 2022-11-01 Lockheed Martin Corporation Automated water volume estimation
US20220119114A1 (en) * 2020-10-16 2022-04-21 Juan Manuel Moreno Multipurpose Aerial Sprinkler System
CN112107821A (en) * 2020-10-20 2020-12-22 山东吉孚消防科技有限公司 Modular fire extinguishing agent injection system and method special for airplane bucket
CA3148671A1 (en) * 2021-02-12 2022-08-12 Donmark Holdings Inc. Multi-dump valve for releasing liquid from a container

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4240507A (en) * 1978-05-17 1980-12-23 Eero Hokkanen Fire extinguishing system having a dosaging cylinder for an additive
DE3315945A1 (en) * 1983-05-02 1984-11-08 Herbert 3000 Hannover Grams Device for spraying fluids in a controlled fashion using an aircraft
SU896850A1 (en) * 1980-07-10 1991-07-23 Всесоюзный научно-исследовательский институт применения гражданской авиации в народном хозяйстве Device for distributing liquid from flying vehicle
WO1994023797A1 (en) * 1993-04-13 1994-10-27 Baker R Arnold Airborne fire suppressant foam delivery apparatus
WO1998052647A1 (en) * 1997-05-21 1998-11-26 Alban De Maisonneuve Device transportable by air for dropping or spraying liquid products
ES2320845A1 (en) * 2008-11-10 2009-05-28 Inventec, S.L. Device for extinguishing fires.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3688952A (en) * 1970-03-20 1972-09-05 Transland Aircraft Inc Spreader
ES419040A1 (en) 1973-09-25 1976-06-16 Alexander Linkewich A method of downloading water and retardant agent of fire over a fire. (Machine-translation by Google Translate, not legally binding)
US4601345A (en) 1985-06-10 1986-07-22 Mahrt David M Mixing and drop system for fire retardants
US5021736A (en) 1989-09-19 1991-06-04 Texas Instruments Incorporated Speed/position sensor calibration method with angular adjustment of a magnetoresistive element
NO303766B1 (en) 1993-06-10 1998-08-31 Lufttransport As Fire extinguishing device
US5829809A (en) * 1997-05-27 1998-11-03 Donald Brian Arney Multi-dump fire fighting bucket
US6688402B1 (en) * 2002-11-22 2004-02-10 Joseph C. Wise Aerial firefighting system
US9265977B2 (en) * 2011-03-04 2016-02-23 Mark Toeckes Multi-dump metering valve

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4240507A (en) * 1978-05-17 1980-12-23 Eero Hokkanen Fire extinguishing system having a dosaging cylinder for an additive
SU896850A1 (en) * 1980-07-10 1991-07-23 Всесоюзный научно-исследовательский институт применения гражданской авиации в народном хозяйстве Device for distributing liquid from flying vehicle
DE3315945A1 (en) * 1983-05-02 1984-11-08 Herbert 3000 Hannover Grams Device for spraying fluids in a controlled fashion using an aircraft
WO1994023797A1 (en) * 1993-04-13 1994-10-27 Baker R Arnold Airborne fire suppressant foam delivery apparatus
WO1998052647A1 (en) * 1997-05-21 1998-11-26 Alban De Maisonneuve Device transportable by air for dropping or spraying liquid products
ES2320845A1 (en) * 2008-11-10 2009-05-28 Inventec, S.L. Device for extinguishing fires.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3117872A4 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9555886B1 (en) 2014-04-22 2017-01-31 Oubada Hawass Multi-modular aerial firefighting control method and apparatus
US10875647B2 (en) 2014-04-22 2020-12-29 Oubada Hawass Multi-modular aerial firefighting control method and apparatus
US11447247B2 (en) 2014-04-22 2022-09-20 Oubada Hawass Multi-modular aerial firefighting control method and apparatus
EP3551298A4 (en) * 2016-12-09 2020-06-24 Oubada Hawass Aerial fluid delivery method and apparatus

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EP3117872A4 (en) 2017-09-20
AU2015228725A1 (en) 2016-09-29
EP3117872A1 (en) 2017-01-18
EP4098330A1 (en) 2022-12-07
US10201721B2 (en) 2019-02-12
US20170072234A1 (en) 2017-03-16
ES2548189B1 (en) 2016-07-19
NZ724226A (en) 2021-07-30
WO2015136128A8 (en) 2016-10-27
AU2015228725B2 (en) 2019-01-03
ES2548189A1 (en) 2015-10-14
CA2942093C (en) 2019-09-10
CA2942093A1 (en) 2015-09-17
CL2016002291A1 (en) 2017-01-13

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